A model of software deployment marketed as an application remotely accessible as a service on demand. In the most common configuration, SaaS software vendors host the application on their own Web servers, which subscribed users have access to through a browser.

At the launch of a SaaS solution, the chosen provider role with the outsourcing of the application has special significance.

The quality of service of the end users depends on the quality of hosting server.

For the SaaS customer, the technical challenge is to move from a logic of guaranteed means to a logic of commitment to results.

Companies outsourcing applications must provide the full range of tools and services to help monitor and measure these results in terms of performance and safety.

This White Paper aims at analysing issues, perspectives and opportunities offered by SaaS.